Retro-Sonic Boost
Brands:
Retro-Sonic Boost is a FET-AMP style design offering the original circuitry updated with high quality components (metal film resistors, caps), and true bypass. It is a somewhat improved version of the Boss FA-1 FET Amplifier that the Edge from U2 has used for years.
Control layout features Bass, Treble, Volume, and Flat / Low Cut switch.















